Alarm attachment for carding-machines.



N0. 683,596. Patented Det. I, |90I. J. L. EADIE &. C. N. BOSTON.

ALARM ATTACHMENT FOB CABDING MACHINES.

(Application tiled Sept. 26, 1900.)

(No Model.) 2 Sheets-Sheet I.

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J. L. EADIE & C. N. BOSTON. ALARM ATTACHMENT FDR GARDING MACHINES.

(Application 'led Sept. 26, 1900.) (No Model.) v 2,Sheets-Sheet 2.

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UNITED STATES PATENT. OFFICE.

JAMES L. EADIE AND CHARLES N. BOSTON, OF HARTLAND, MAINE.

ALARM ATTACHMENT FOR CARDlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 683,596, dated October 1, 1901.

Application tiled September 26, 1900. Serial No. 31,171. (No model.)

T0 a/ZZ whom t may concern:

Beit known thatwe, JAMES L. EADIE and CHARLES N. BOSTON, citizens of the United States, residing at Hartland, in the county of Somerset and State of Maine, have invented new and useful Improvements in Alarm Attachments for Carding-Machines, of which the following is a specication.

This invention relates to new and useful improvements in alarm attachments for carding-macliines; and its primary object is to provide a simple and inexpensive device of this character which will sound an alarm when the wool within the feed is nearly eX- hausted or when the roving breaks.

The device is especiallyV adapted for use upon Bramwell and Bates feeds.

To these ends the invention consists in providing a bracket to which are pivoted strips each of which is secured to a wire of an electric circuit. Means are provided whereby these strips are thrown into contact with each other, thereby forming a circuit and sounding a suitable alarm which will indicate the condition of the feed. Diderent means are necessary to operate these contact-strips, the character thereof being governed by the form of machine to which the alarm is applied.

In the accompanying drawings we have shown the preferred form of our invention, which is adapted to be attached to an ordinary Bates feed.

Figure 1 is a perspective View of a portion of a Bates feed, showing the alarm attachment applied thereto. Fig. 2 is a front elevation of said attachment. Fig. 3 is a detail view of the bracket and the contact-strips thereon. Figs. et and 5 are detail views of said strips detached. Fig. 6 is a face View of a'modiiied form of attachment. Fig. 7 is an edge View thereof.

Referring to the drawings by numerals of reference, 1 is a side plate which is adapted to be secured to the standard 2 of a Bates feed andis provided with a stud 3 extending laterally therefrom. Loosely mounted upon this stud is a spider having collar 4 and which is prevented from moving laterally upon said stud by means of sleeves 5,as shown. An arm 6 projects downward'from the collar and is curved slightly at the end thereof, as at 7, said end being arranged slightly above 'in Fig. 3.

the feed-aprons S of the machine at a point in -front of a trumpet 9, of ordinary construction, arranged at a point adjacent to the dis- 5 5 tributing-rolls 10. The curved end 7 of the arm normally contacts With the roving fed into the trumpet 9. Arms 11 and 12 extend upward in differentdirections from the collar 4, and slidably mounted upon the left-hand 6o arm 11 is a weight 13, which is adapted to be held in adjusted position by means of a setscrewu14, extending therethrough and normally binding upon said arm. The righthand arm 12 extends laterally to a point be- 65 low and in the path of a lower strip 15, having aspoon-shaped end 16 thereto. This strip is pivoted to abracket 17, secured to the feedcarrier of the machine, and is adapted to be thrown upward into contact with a small pen- 7o dent upper strip 18, also pivoted to the base 17. By pivotingthis strip the same may be adjusted so as to regulate the amount of movement of the arm l2 necessary in order to bring the same into contact with said strip. This strip is preferably struck up from a blank of suitable metal and is secured to one end of a Wire 19 of an electric circuit, the strip 15 being secured to a second wire 2O thereof. These wires may be connected to a bell or 8o other suitable alarm which is adapted to be soundedL when the two strips are thrown into Contact with each other. The Vroving when fed through the trumpet will prevent the arm 6 from swinging laterally in the direction of85 the bracket 17 under pressure of the weight 13. When, however, the roving breaks, the arm 6 will promptly swing laterally and cause the arm 12 to bear upon the enlarged portion 16 of strip 15 and force it against the end of 9o the strip 1S.

Pins or studs 2l are arranged upon the face of the plate 5 and are adapted to limit the movement of the spider having the collar and the arms projecting therefrom.

It will be understood that by adjusting the strip 18 upon its pivot the amount of motion necessary before the strips 15 and 18 are placed in contact with each other is readily regulated.

The device shown in Figs. 6 and 7 of the drawings is adapted to be employed in lieu of that portion of the apparatus illustrated This modified form comprises Ico comprising a side plate, provided with a latf wally-extending stud, and stop-pins, a spider having a collar whereby it is loosely mounted on the stud,a depending arm, having a curved end, a left-hand arm, and a right-hand arm,

a counterbalanee-weight secured to the lefthand arm, a bracket, a lower contact-strip pivoted to the bracket and against which the right-hand arrn is adapted to impinge, and

an upper contact-arm adjustably secured to the bracket.

In testimony whereof we affix our signatures in presence of two witnesses.

- J AMES L. EADIE.

CHARLES N. BOSTON.

Witnesses:

EDWARD G. VARNEY, WILLIAM B. BROWN. 

